Pollution Control of Heavy Metals in Sediment

Heavy metals are very popular in environment and usually sediment maybe the final migration destination. With the changing of environmental conditions, heavy metals in the sediment will transform their chemical speaciations and release to environment, which will cause secondary pollution. Heavy metals are dangerous to senior organisms or human beings because of their characters of bioaccumulation and non-biodegradation. So more and more attentions have been paid to heavy metals in the sediment. In this paper, pollution situation, chemical speaciations of heavy metals, releasing mechanism and treatment countermeasure are discussed and proposals for the research on heavy metals pollution are listed.